Paper - Normal development of early human embryos: Observation of 90 specimens at Carnegie stages 7 to 13
|Embryology - 25 Jan 2020 Expand to Translate|
|Google Translate - select your language from the list shown below (this will open a new external page)|
العربية | català | 中文 | 中國傳統的 | français | Deutsche | עִברִית | हिंदी | bahasa Indonesia | italiano | 日本語 | 한국어 | မြန်မာ | Pilipino | Polskie | português | ਪੰਜਾਬੀ ਦੇ | Română | русский | Español | Swahili | Svensk | ไทย | Türkçe | اردو | ייִדיש | Tiếng Việt These external translations are automated and may not be accurate. (More? About Translations)
Nishimura H. Tanimura T. Semba R. Uwabe C. Normal development of early human embryos: Observation of 90 specimens at Carnegie stages 7 to 13. (1974)Teratology 10(1): 1-5. PubMed 4853372
|Historic Disclaimer - information about historic embryology pages|
|Embryology History | Historic Embryology Papers)|
Normal Development of Early Human Embryos: Observation of 90 Specimens at Carnegie stages 7 to 13
1. A systematic analysis of the relation between 2 parameters of developmental stage — clinically assessed embryonic age and growth — was made for 90 human embryos at Carnegie stages 7–13 from healthy pregnancies.
2. The data showed remarkable individual variation in the relation between age and developmental stage of embryos at stages 11–13. It appears that the mean age for these stages in our specimens was a few days greater than the corresponding age in the currently cited standards, although a definite conclusion must await further studies.
3. The relation between body length and developmental stages in our embryos was not different from the corresponding standards presented by previous investigators. The relation of the number of somites to developmental stage and greatest length in 13 embryos at stages 9–11 was approximately in accord with that reported for several corresponding embryos by other investigators.
4. The oldest age for embryos at each stage in our data may have practical use in denying a causal relation between the exposure of pregnant women to an exogenous agent at such a stage and the subsequent appearance of specific malformations in their progeny.
|Carnegie stage:||1 2 3 4||5 6||7 8 9||10 11 12 13||14 15||16 17||18 19||20 21 22 23|
Cite this page: Hill, M.A. (2020, January 25) Embryology Paper - Normal development of early human embryos: Observation of 90 specimens at Carnegie stages 7 to 13. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Paper_-_Normal_development_of_early_human_embryos:_Observation_of_90_specimens_at_Carnegie_stages_7_to_13
- © Dr Mark Hill 2020, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G